Sectional pipe



(No Model.)

WALKER EGTIONAL PIPE No. 261,191. 1 313611138 J111y18,'1882.

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UNITED STATES PATENT OFFICE.

NATHAN U. WALKER, OF WVALKERS P. 0., OHIO.

SECTIONAL .PIPE.

SPECIFICATION forming part of Letters Patent No. 261,191, dated July 18,1882,

Application filed February 15, 1882. (No model.) I

To all whom it may concern Be it known that I, NATHAN U. WALKER, ofWalkers P. 0.,in the county of Oolumbiana and State of Ohio, haveinvented a new and useful Improvement in Sectional Pipe; andI do herebydeclare the following to be a full, clear, and exact descriptionthereof.

My invention relates to the construction of sectional pipes and theirjoints; and it consists in forming on the external side of the small endof the pipe lugs or wedges which take under projecting lips on the innersideof the socket of theadjoining pipe also, in making such sockets withinclined surfaces between the projecting lips, so as to center the boreof the pipe, which is secured in place by the lips and projections;also, in the construction of a reducer to be placed in the socket of thepipe or in a similar socket in the branch of the pipe for the purpose ofreducing the bore of the pipe or its branch to any desired size.

To enable others skilled in the art to make and use my invention, I willnow describe it by reference to the accompanying drawings, in whichFigure 1 is a side view of two sections of pipe put together, and eachprovided with a branch. Fig. 2 is a cross-section on the line a: 00,Fig. 1. Fig. 3 is a view of two sections of pipe put together, one ofthem beingin section. Fig. 4. is alongitudinal sectional view of asection of the pipe having a branch, and provided with the reducer inposition in the socket of the branch. Fig. 5 is an end view of thebranch socket, showing the reducer in the position it occupies whenplaced in the bowl. Fig. 6 is a perspective view of the reducer.

Like letters of reference indicate like parts in each.

The sections a a are formed with external strengthening-ribs 01, such asare described and claimed in another application of even date herewith,and with a bowl or socket, I). On the smaller end of the sections I formtwo or more locking-lugs, e, which preferably have an inclined sidesurface, 0, said lugs being formed by cutting the strengthening-ribs daway, as at 0 On the inner side of the bowl I) are projecting lockinglugs or lips g, in number correspondin g to the number of lugs e on thesmall end of the pipe-section. The under surfaces or sides of the lugs gare preferably inclined, as at g, correspondingly with the inclined sideof the lug 0, so that when the smaller end of one of the sections isinserted into the socket or bowl of another section the lugs or wedges emay be turned. under the inclined lips gand the two sections securelylocked thereby. In order to center the sections with each other for thepurpose of bringing their respective bores in line, I make the innersurfaces of the sockets b, which intervene between the lips g, inclined,as shown at f, so that when the entering section is inserted into thesockets and turned the lugs 0, coming against the inclines f, force theentering pipe to the center of the bowl. This last feature ofconstruction is claimed in the before-mentioned application of even dateherewith.

If desired, the pipe described may be made without the ribs 01.

Wherever desired a section may be provided witha branch, 0, having asocket, c, which is similar in construction to the socket 1), beforedescribed. If it is desired to reduce the size of the main pipe (I, orthe branch pipe 0, so as to connect the same with a smaller pipe, h, itcan be done by the use of areducer, t. (Shown in Fig. 6.) The externalsurface of this reducer is similar to the small end of the pipe a if outoff at the line y 3 Fig.1. The inner surface of the reducer may beformed either with a plain socket, i, as shown in Fig. 6, or a socketsimilar to the socket bin internal construction. The reducer z isinserted into the socket of the pipe by dropping it in, in the positionshown in Fig. 5, and then turning until its lugs ctake under the lips g,as shown in Fig. 4. It is thereby securely fastened in place and readyfor the-reception of the smaller pipe, it. These branch pipes 0 may bemade at any desired place in the line of the pipe, and may be fitted bythe use of the reducer t to receive branch pipes of various sizes, itbeing necessary only to make the opening of the reducer of a sizecorresponding to that of the desired branch, pipe. In the use of thesepipes cement is placed in the bowls or sockets at each joint for thepurpose of making the joint tightin the usual way.

By my invention I save the necessity of cutting holes of varying sizesin the pipes, and

am enabled to make a much more perfect joint at very much less expenseand trouble.

The pipe may be made of clay, composition, cement, iron, or any desiredmaterial.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. A socketed pipe-section having overlapping locking lugs or lips uponits inner side, and curved inclines extending between the locking lugsor lips, in combination with an entering section having projectinglocking lugs, substantially as and for the purposes described.

2. A socketed pipe section or branch having locking lugs or lips on theinner side of the socket, in combination with a reducing-piece havinglocking-lugs on its outer side to take under the lugs or lips in thesocketed piece, substantially as and for the purposes described.

3. A reducing-piece havinglugs on its external surface designed fortaking under projecting lips on the interior of the socket of the pipe,and provided with a centralbore and socket, substantially as and for thepurposes described.

In testimony whereof I have hereunto set my hand this 14th day ofFebruary, A. D. 1882.

NATHAN U. \VALKER.

WVi tnesses:

T. B. KERR, JAMES H. PORTE-

